3522 - Lysine and its esters and salts thereof; glutamic acid and its salts; quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids; acyclic amides and their derivatives and salts thereof; cyclic amides (except ureines) and their derivatives and salts

3523 - Lactones n.e.c., heterocyclic compounds with nitrogen hetero-atom(s) only, containing an unfused pyrazole ring, a pyrimidine ring, a piperazine ring, an unfused triazine ring or a phenothiazine ring system not further fused; hydantoin and its derivatives; sulphonamides